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Author Question: Winter hibernation and spring reproduction in bears are cued by seasonal changes (Read 558 times)

sammy

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on: Sep 23, 2013
Winter hibernation and spring reproduction in bears are cued by seasonal changes in the secretion of
A) melatonin from the pineal gland.
B) melatonin from the hypothalamus.
C) thyroxine from the anterior pituitary gland.
D) acetylcholine from the pineal gland.
E) thyroid-stimulating hormone from the posterior pituitary gland.


penguins

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Reply #1 on: Sep 25, 2013
For sure it has to be A Mark as solved once you're done!


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sammy

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Reply #2 on: Sep 27, 2013
Marking this topic solved :D

Thanks so much for the help


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